This study was conducted on sixteen local Iraqi bucks aged 3 to 4 in College of Veterinary Medicine/ University of Baghdad from January to May, 2016. They were divided randomly into two equal groups; 1^st group (G1) was treated by oral administration of 15 gm/daily cumin seeds for 3 weeks, while the 2^nd group (G2) represented control group. The 1^st group showed a significant (P≤0.05) increased in semen volume (2.08±0.36 ml), furthermore number of sperm was increased significantly also according to assessment of semen color (4.23±0.26). Mass and individual motility showed significant higher level in the 1^st group (86.00±1.97, 87.00±1.62%, respectively), than in the control group. Significant increased in cortisol and testosterone level recorded in the 1^st group as compared with the 2^nd group. In conclusion, cumin seeds enhanced improvement of semen bucks quality.